Plant growth apparatus



FIG. 1 is a perspective view of a plant growth apparatus showing the new design; and

FIGS. 2, 3 and 4 are, respectively, front, end and top views of the design shown in FIG. 1.

FIG. 5 is a horizontal sectional view taken along line 5--5 of FIG. 2. 

The ornamental design for a plant growth apparatus, as shown and described. 